The other appointees include Hope Hicks as director of strategic communications, Jason Miller as director of communications and Dan Scavino as director of social media.

"Sean, Hope, Jason and Dan have been key members of my team during the campaign and transition. I am excited they will be leading the team that will communicate my agenda that will Make America Great Again," Trump said in a statement.

The announcement came just hours after Trump announced he had named senior campaign adviser Kellyanne Conway as his presidential counselor.

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House Intelligence Committee Chairman Adam Schiff of California said that "people have suffered enough" because of President Trump and that a real leader would re-open the part of the government that has been shuttered since December.